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Atlas WeatherMaster Ice and Water Roof Underlayment

- Available in 2 Options. Pricing may vary.

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Product Information


The Atlas WeatherMaster Ice and Water Roof Underlayment is a self-adhesive underlayment which provides a secondary layer of waterproofing protection to prevent damage from ice and rain. Composed of a proprietary, SBS-modified asphalt, it provides excellent traction and protection from UV degradation and weathering. This Ice and Water Barrier has a high temperature stability and can be used in new construction or in a re-roofing application that requires a complete tear-off. Atlas manufacturers this roofing underlayment to be self-adhering and it does not require any special adhesives, equipment, or heat for installation.


  • 2x more adhesion than industry standard
  • Self-adhesive backing seals directly to the deck
  • Fiberglass mat is stronger and provides better tear resistance than saturated felt
  • Aggressive bond at low temperatures, 45 degrees Fahrenheit minimum
  • Non-peel selvage edge
  • Use for valleys, eaves, flashings, hips, ridges, and rakes, and around dormers and skylights
  • Provides extra protection under any type of roofing: tile, wood shake, asphalt, slate, or metal.
  • Underwriters Laboratories Class A and Class C Fire Rating (based on roof covering). ASTM D1970, Standard Ice Dam Underlayment. Florida Building Code Approved - FL 17322. Miami-Dade County Product Control Approved


  • 55-mil thickness, 38% above industry requirement
  • Roll Coverage: 2 Square (200 Square Feet)
  • Width: 36in.
  • Length: 65ft.

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Ice and Water Roof Underlayment